Several Missing Tools
The knife tool is in 2.62, however it's nothing like the modern knife tool. It was rewritten into it's modern form in 2.63 with the introduction of bmesh.

The Bevel tool was also added in 2.63, after being missing since 2.5x.

However both these tools (and many others) have been improved enormously since then, so I highly recommend updating to the latest version.